WHDH 7 in New Hampshire, the local NBC affiliate, interviewed Lanza’s sister Marsha …

“Last time we visited with her in person we talked about prepping and you know, are you ready for what can happen down the line when the economy collapses,” said the gunman’s aunt, Marsha Lanza.

The reporter asked, “Survivalist kind of thing?”

“Yea,” said Marsha Lanza.

Nancy’s guns were supposed to be for self defense."

...

The Daily Mail is not the most reliable source. But they also reference similar quotes from Lanza’s sister ….

Last night it also emerged Nancy was a member of the Doomsday Preppers movement, which believes people should prepare for end of the world.

Her former sister-in-law Marsha said she had turned her home ‘into a fortress’. She added: ‘Nancy had a survivalist philosophy which is why she was stockpiling guns. She had them for defense.

‘She was stockpiling food. She grew up on a farm in New Hampshire. She was skilled with guns. We talked about preppers and preparing for the economy collapsing.’